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Speaking to Sky Sports the retired referee said: "Mane's goal should have stood. Although he was in an offside position he doesn't impact because Firmino goes for the ball.

"When Firmino plays the ball he's behind him, so even though the ball comes back off the post, the last Liverpool player to play the ball was Firmino so Mane was entitled to follow up and score. Because the assistant was caught on the first ball he's out of position and cannot the position of the Liverpool players."

The result meant that Emery's side have dropped four points from their last two Premier League fixtures.

With Arsenal drawing against the Reds, coupled with Spurs beating Wolves it meant Unai Emery's side dropped one place and now sit fifth in the table ahead of this weekend's clash against the West Midlands outfit.